An electrochemical capacitor based on a Ni(OH)2/activated carbon composite electrode

Jong Hyeok Park; O. Ok Park; Kyung Hee Shin; Chang Soo Jin; Jong Huy Kim

doi:10.1149/1.1432245

An electrochemical capacitor based on a Ni(OH)₂/activated carbon composite electrode

Jong Hyeok Park, O. Ok Park, Kyung Hee Shin, Chang Soo Jin, Jong Huy Kim

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

197 Citations (Scopus)

Abstract

In order to enhance energy density, a hybrid type pseudocapacitor/electric double layer capacitor (EDLC) was considered and its electrochemical properties were investigated. At various current densities, stable charge/discharge behaviors were observed with much higher specific capacitance values of 530 F/g compared with that of EDLC (230 F/g), by introducing Ni(OH)₂ as a cathode material. By using the modified cathode of a Ni(OH)₂/activated carbon composite electrode, the specific capacitance was less sensitive to charge/discharge current density exhibiting stable power characteristics.

Original language	English
Pages (from-to)	H7-H10
Journal	Electrochemical and Solid-State Letters
Volume	5
Issue number	2
DOIs	https://doi.org/10.1149/1.1432245
Publication status	Published - 2002 Feb

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)
Materials Science(all)
Physical and Theoretical Chemistry
Electrochemistry
Electrical and Electronic Engineering

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10.1149/1.1432245

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AU - Jin, Chang Soo

AU - Kim, Jong Huy

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AB - In order to enhance energy density, a hybrid type pseudocapacitor/electric double layer capacitor (EDLC) was considered and its electrochemical properties were investigated. At various current densities, stable charge/discharge behaviors were observed with much higher specific capacitance values of 530 F/g compared with that of EDLC (230 F/g), by introducing Ni(OH)2 as a cathode material. By using the modified cathode of a Ni(OH)2/activated carbon composite electrode, the specific capacitance was less sensitive to charge/discharge current density exhibiting stable power characteristics.

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An electrochemical capacitor based on a Ni(OH)₂/activated carbon composite electrode

Abstract

All Science Journal Classification (ASJC) codes

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